statsmodels.miscmodels.count.PoissonOffsetGMLE.nloglikeobs¶
- PoissonOffsetGMLE.nloglikeobs(params)[source]¶
Loglikelihood of Poisson model
- Parameters:
- paramsarray_like
The parameters of the model.
- Returns:
The
log
likelihood
of
the
model
evaluated
at
params
Notes
\[\ln L=\sum_{i=1}^{n}\left[-\lambda_{i}+y_{i}x_{i}^{\prime}\beta-\ln y_{i}!\right]\]